Propelling arrangement on sleighs



Dec. 18, 1928.

J. RANTASA BROPELLING ARRANGEMENT ON SLEIGHS Filed Ahg. 24. 1925 realise net. s, me

. UNITED STATES PATENT" 103 mass, or'vmmu, answers, 7 nornmnveanmyonm r on 81333338.

Application fled August 192:, swarm-52,095, and in Austria September 1;,1924,

This invention relates to improvements in propellingor driving arrangements on sleighs or sledges, the object being to providelittle siei he or toboggans, bob-sleighs or the like Wit driving means in a simple and inexpene sire but effectual manner so that it is possible to use these vehicles also for the up-hill course.

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The invention consists of a unit rods-an rangement, bearing on its back art the motor and the propelling devices an being swing ingiy pivoted to the frame, so the propelling device can loosely lay on the snow, ice or the:-

like' in course.

Further the pivotin of the mas-ima e; :ruent takes place on t e front ends of arms fastened on the frame of the sleigh. and

"the driving action is effective as tractive power. Hereby the working point of the driving device on the rods-arrangement is placed lower than that of the 'rods-arrange-i ment on the arms of the frame, the front art of the sleigh being so maintained out o the snow or the like, by which the resistance in course is reduce The traction chain of the traction unit,

forming the driving or propelling device of Bill the slei h, consists of a ribbon or band "of -:india-ru ber provided on the inn'erside with wedge like projections, with which the tractor band entersin wedge like grooves of the driven traction wheels, so being set inmo-. ;v1ded on its inner sideswith such we g9? shaped pro ections'arranged toienter said up--and forward and eventually supported,

by an upper arm, 7:. the rods arrangement pivoted in c on the front end of the arms 9 and bearing: first the motor k, then the transmitting parts m and on the rear end the trace tion unit I, forming the propelling device and with the propelling arrangement ac- I bein provided with means 0, p for press: ing own the traction unit. v,

on the outer surface with paddle-like crossledge 1*, which maybe made of one piece with the traction band 9 preferably of mmicord and which are provided withradlal pro-- 'ecting teeth "or thorns to, which are designed to engage the ice or glaciated snow for propelling the sleigh. 'Onthe inner'side of the traction band, wedge-like projections 8" extend around the whole surface and enters into like-shaped grooves u provided, around the L I traction wheels '2), whereby the band 9 is carried away owing to the friction and adhesion 1 between the surfaces of the projections a and stretching far in front of the. frame, by which the grooves u by the driven traction wheels *0. The projections .a and the grooves u may be intermitted by steps t or the like for secure is claimed as new is: L A sleigh having its runners provided 1' with forwardly and upwardly extending arms, a frame arranged between the runners and pivotally mounted at-its front end between the front ends of said arms, a motor,

on said frames, and a tractionunit mounted 1 at the rear end of said frame and comprlsmg traction wheels having wedgeshaped periph-v eral grooves, and an endless -traction band.

connecting said wheels, said band being roends of said arms, a motor on said frame,

a tractor unit mounted at the rear end of said 9.5 frame and driven by said motor, a yoke mounted on the rear end of said frame and extending rearwardly and upwardly there- 7 I from, a lever mounted on the sleigh, a cord connecting saidlever and said yoke, and traction pulleysengaged by said cord, said cord and lever being arranged to draw downward- 1 1y on said yoke and to thereby depress the rear end of the frame and said tractor unit. 3. In combination with a sleigh a frame arranged between the sleigh runners and piv-' otally connected at its front end to the front portion of the sleigh for vertical movement of said frame, a traction unit mounted on said frame and a motor also mounted on said frame, said motor being connected to and arranged to operate said traction unit.

4. combination with a sleigh a frame arranged between the sleigh runners and pivotal connected at its front end to the front portion of the sleigh for vertical movement of said frame, a traction unit pivotally mounted in the rearportion of said frame and a motor also mounted on said frame, said motor bein connected to and arranged to operate said traction unit. v

5. A sleigh having its runners rovided with forwardly extending arms, a rame arranged between the runners and ivotally mounted at its front end between t e front ends of said arms, a motor on said frame, and 20 a tractor unit mounted also on said frame and driven by said motor. In witness whereof I afiix my si ature.

JAKOB RA. TASA. I 

